Windmill attachment.



G. W. LOVEJOY.

WTNDMTLL ATTACHMENT.

APPLICATION man o:c.4. 1911.

Patented Aug. 6, 1918.

HNVENTOR WITN ESSES ATTORNEY 4, PNOMII'HO wumnown. n. c.

\ UNITED STATES "PATENT QFFIGE- enonen WALTER LOVEJOY, or TEI-IA'CHAPI; CALIFORNIA, AssIGNoR or ONE-HALF To on nnnonscnorr; or TEI-IA'CI-IAPI', CALIFORNIA." t

' wmmvnm. ATTACHMENT;

To all whom it may concern Be it known that I, GEORGE W. LOr/EJOY a citizen of the *Unitedi States, "residing at Tehachapi; in the county of Kern and State 5 of California, have-invented a new anduseful'WindInill Attachment of which the following is a specification, v I

Thisinvention'relates-to windmill orpump 'attachments and particularly to improvementsin that class of attachments known" as equalizers. p 5 As is" well known, the common windmill pump While satisfactory enough in operation during strong winds, is ery unreliable when light variable windsprev'ail. This inherent disadvantage in windmills has been overcome'in part by ariousattachments known in the art as-equaliz ers,' usually expansible coiled springsf T-hese' T springs I may be mounted on the pump rod concentric with the same and may bear 'at one end against 'a' stationary collar, attached to the windmillpower, while the" other end may be fixed to the pump-rod' itself or may bear against a collar secured to the pump-rod. 'As their; name indicates; the equalizers tend-to make) equal 1 theresistance of the ldownstroke and the upstroke; of the pump 1 H by'storing up energy on'the down stroke when? they are compressed,--and by giving out energy on the up stroke, when they ex- I P p-and. i

r The reason!whyequalizers are necessary is because ontheup stroke of'the pump the wll ldmlll must; not "onlydi'ft the water but weigh-tfof the pump rod y'ythe valve, etc.,

as-well as overcome friction,}while on the 'd'owmstrok of he {pump the weight of the pump-rod; et

arailable 'the we; lent by-thef expansion My Z Specification of Lettersrr atentf aids-t thestrokefand only 7 FfrictiQn iinpedes "the' motion; By; utilizing t fgithg urpl s energy of the down 'stroke to a t compress a sprin'gglthegup'strokewill have V l {which'is' passed 'thepump rod 6 forsrecipro f Thus the" equaliier llives f cation in E the 1 operation 1 of the"" piin'1'p.

one attempts to prevent the wear by making the Spring fit very loosely on thevr'od, the

h g I atienaa Aug-@1 18, Application filed neeemberjeiswz seria1m'.2o5, 4o7.,

spring will get out of true and-in time break I at the point of greatest strain; 5 1

It is' the general object of this 1 invehtion" M to provide an equalizer whichwi ll'be rust-.-

proof and; practically Wear-proof. To be V 'more' speci-fic,' it ismy object to. providean o equalizer whic'h will work in a bath of-oil.

* gQthe'r-objects are to make an equalizer 'whlch will bejto'a high degree adjustable,

'which'will' givegoodservice', and which may be put onai'windmill'in "a short time by a mere nov1ce.-

' Thejinvention will be explained jthe specific description following. I

Referenceisto behadtothe accompanying drawing forming a part of this-specifi- "cation, in which similar characters of refi7iews." y M In-the accompanyingdraw n'g'z I l Flgure 1 1s,a-fragmentarygside elevation erenCe" indicate; corresponding parts in all of a windmill showingthe device constructed inac cordancewith the inventionapplied;

I v Fig; 2 is, anenlarged 'fragmentaryfvertical sectional ilri'ewthrough the device; Fig; 3 is a sectional View on the line 3-;3

of Fig; 2 iloolzi' ng n the direction of the arrowQ i p t Referring'tothe" drawingin detail, the

a device comprises a coiled: expansion spring "5Qwh1ch 1s dls'posed exteriorly of and surrounds a pump was of the ordinary or any preferredconstruction; the spring being disa posed betwe'enf'a'n adjustable collar andthe.

lbase or di1er;' the eans:

c hich will' hereinafter fullydescrjb d H 11-; i

The goiler comprises "a base plate 7 which is bolted or otherwiseffastened to a stationary part of t the windmill tower frame; and is providedwith a suitable openingthrough 1 from coaxially 'offthe opening" for'the'pflI P rod 6 is an externallyfthreaded 'l'andfior 'boxing 8, anda'djustab1y ngaged't erewith H is a 'hollow 'nut9 in whichis helda packing? Formed on the base plate 7 at the upp'er l to screw down upon the nipple or flange 11 until-it s lower edge comes in contact with the plate 7. Oil, as designated by the nu-' meral 18, is poured into the upper open end of thebarrel, thus providing means for lubricating the rod and the spring as will be explained. V

The spring 5 has its lower end seated on the base plate 7 within the flange or nipple 11,. and on the down stroke of the pump rod 6 the spring compressedwithin the barrel or cylinder 12 which contains oil, so that the coils of the spring will be thoroughly lubricated. On the up stroke Of the pump-rod, the coils of the spring will lift during its expansion and will carry along a coating of oil. Thi coating not only practically eliminates heating and consequent wear between the pump-rod and spring, but enables the spring tov fit closely to. the rod, thereby doing away with any possibility of kinking.

The adjustable collar hereinbefore mentioned comprises a split sleeve' fo'rmed of the separable parts 14, each provided with outwardly extending cars 15. Each of these cars is provided with a tapped hole, and screws or bolts 16 pass through these holes and firmly clamp the parts 14 together. The pump-rod is provided along a portion of its length with screw threads 17, while the bore of the collar is similarly threaded internally, so that the collar may be moved up and down on the rod at will. The purpose of the collar is to provide adjusting means for the spring, and in order to fillfil its function, its lower end has a counterseat lSto bear against the upper end of the spring. When the latter loses some of its power, the collar may be screwed down to bear harder against the spring, thus making up for this loss ofstrength.

The packing in the hollow nut 9, which is internally threaded and adjustably engaged on the gland or boxing 8, will prevent the leakage of the oil from the cup '12 downwardly upon the rod 6 as will be apparent.

.It will be obvious that the spring 5 will be thoroughly lubricated in the working "of the pump rod- 6, as theentire length thereof will be compressed within the body of oil 13- contained in-the cup 12011 the down stroke of the rod. Upon the up stroke the spring will act as an oil distributer, and

will keep the rod constantly bathed with lubricant.

From the foregoing, it is thought thatthe construction and the manner of operation of the equalizing device will be understood, and therefore a more extended explanation has been omitted.

What is claimed is: 1. Ina pump structure, a movable pump rod, an equalizer device operative upon the 'rod, and a lubricant container fixed relatively to the rod and adapted to receive the equalizer device for lubricating the same upon movementofthe pump rod.

2. In a pump structure, a movable pump rod, an equalizer device operative upon the rod, a lubricant container fixed relatively to the rod and adapted to receive the equalizer device for lubricating the same upon movement of the pump rod, and means on the pump; rod for adjusting the equalizer device.

3. The combination with a support, of a reciprocating rod in said support, a stop on the rod, a lubricant container onthe support and surrounding the rod, and a coiled expansion spring surrounding the rod and having its bearing against the stop and interiorly of the container and adapted to be compressed within thet latter for the lubrication of said spring, the rod being lubricated upon the expansion of the spring.

4. The combination with a support, of a reciprocating rodin said support, a stop on the rod, a lubricant container on the support and surrounding the rod, a coiled expansion spring surrounding the rod and bearing against the stop and also the interior of the container and adapted to be compressed within the latter for the lubri- 5. The. combination with a support, of a reciprocating rod in said support, a stop on the rod, a lubricant container surrounding the rod, said container having a base secured to the support and a packlng gland at its lower end surrounding the rod with an 5 oil ti-ghtpacking within said gland, a coiled expansioi-rspring surrounding-the rod and bearing against the stop and also interiorly of the container and adapted to be compressed within the'latter for the lubrication of said spring, the rod being lubricated upon the. expans-ionot saidispr-ing,

6. The combination with a supportgof a reciprocating rod in said support, a stop on and bearing against the stop and also inthe rod, 'saidfrod being externally threaded and said 1 stop being-internally threaded teriorly of the container and adapted to be compressed Within the latter for the'lubrication of said spring, therod being lubricated upon the expansion of said spring. 7

7. In a pump, a frame, a pump rod moirable in the frame, a self-lubricating equalizer secured to the frame, said equalizer comprising a base plate havlnga passage for said pump rod, an externallythreaded packing gland depending from the base plate and surrounding the pump rod, a hol low nut adjustably engaging the threaded pacln'ng gland and having packing therein, a nipple portion rising from the base plate and surrounding the rod, an oil container screwed upon said nipple portion and open at its upper end, a stop on said rod, a spiral spring mounted on the rod With one end engagedin the nipple and the other engaged with said stop, and means for adjusting the position of the stop on the rod.

In testimony that I claim the foregoing as my own, ,I have hereto aflixed my signa.

Copies of this patent maj be obtained for five cents each, by addressing the Commissioner of Patents,

' r Washington, D. G. a 

